کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
684949 889030 2007 4 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Screening of the antioxidative properties and total phenolic contents of three endemic Tanacetum subspecies from Turkish flora
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی تکنولوژی و شیمی فرآیندی
پیش نمایش صفحه اول مقاله
Screening of the antioxidative properties and total phenolic contents of three endemic Tanacetum subspecies from Turkish flora
چکیده انگلیسی

Methanolic extracts of three different Tanacetum subspecies [Tanacetum densum (Lab.) Schultz Bip. subsp. sivasicum Hub-Mor and Grierson, Tanacetum densum (Lab.) Schultz Bip. subsp. eginense Heywood and Tanacetum densum (Lab.) Schultz Bip. subsp. amani Heywood] which are endemic to Turkish flora were screened for their possible antioxidant activities by two complementary test systems namely DPPH free radical scavenging and β-carotene/linoleic acid. In DPPH system, the most active plant was T. densum subsp. amani with an IC50 value of 69.30 ± 0.37 μg/ml. On the other hand, T. densum subsp. sivasicum exerted greater antioxidant activity than those of other subspecies in β-carotene/linoleic acid system (79.10% ± 1.83). Antioxidant activities of BHT, curcumine and ascorbic acid were also determined as positive controls in parallel experiments. Total phenolic constituents of the extracts of Tanacetum subspecies were performed employing the literature methods involving Folin–Ciocalteu reagent and gallic acid as standard. The amount of total phenolics was highest in subsp. sivasicum (162.33 ± 3.57 μg/mg), followed by subsp. amani (158.44 ± 2.17 μg/mg). Especially, a positive correlation was observed between total phenolic content and antioxidant activity of the extracts.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Bioresource Technology - Volume 98, Issue 16, November 2007, Pages 3076–3079
نویسندگان
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